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ST7775R屏驱手册.pdf
ST7775R
176RGB x 220 dot 262K Color with Frame Memory
Single-Chip TFT Controller/Driver
Datasheet
Preliminary Version 0.1
2010/03
Sitronix Technology Corp. reserves the right to change the contents in this
document without prior notice.
ST7775R
LIST OF CONTENT
1 GENERAL DESCRIPTION..................................................................... 8
2 FEATURES ............................................................................................ 9
3 PAD ARRANGEMENT ......................................................................... 11
3.1.. Pad Arrangement...............................................................................................11
3.2.. Bump Dimension ...............................................................................................12
3.3.. Alignment Mark Dimension................................................................................13
3.4.. Chip Information ................................................................................................13
4 PAD CENTER COORDINATES ........................................................... 14
5 BLOCK DIAGRAM ............................................................................... 29
6 PIN DESCRIPTION .............................................................................. 30
6.1.. Power Supply Pins.............................................................................................30
6.2..
Interface Logic Pins ...........................................................................................31
6.3.. Driver Output Pins .............................................................................................33
6.4.. Test Pins............................................................................................................34
7 DRIVER ELECTRICAL CHARACTERISTICS...................................... 35
7.1.. Absolute Operation Range ................................................................................35
7.2.. DC Characteristics.............................................................................................36
7.3.. Power Consumption ..........................................................................................37
7.4.. AC Characteristics .............................................................................................38
8080 Series MCU Parallel Interface Characteristics: 18/16/9/8-bit Bus ...................... 38
6800 Series MCU Parallel Interface Characteristics: 18/16/9/8-bit Bus ...................... 40
Serial Data Transfer Interface Characteristics: ............................................................. 41
RGB Interface Characteristics: ....................................................................................... 42
INTERFACE ......................................................................................... 44
8.1.. MCU Interface Type Selection...........................................................................44
8.2.. 8080-Series MCU Write Cycle Sequence..........................................................45
8.3.. 6800-Series MCU Write Cycle Sequence..........................................................46
18 bits Interface Write Data Format................................................................................ 47
8.3.1
16 bits Interface Write Data Format................................................................................ 48
8.3.2
9 bits Interface Write Data Format.................................................................................. 49
8.3.3
8 bits Interface Write Data Format.................................................................................. 51
8.3.4
8080-series MCU Read Cycle Sequence ........................................................................ 53
8.3.5
6800-series MCU Read Cycle Sequence ........................................................................ 54
8.3.6
18bits interface read data format.................................................................................... 55
8.3.7
16bits Interface Read Data Format ................................................................................. 56
8.3.8
9bits Interface Read Data Format ................................................................................... 57
8.3.9
8.3.10 8bits Interface Read Data Format ................................................................................... 58
7.4.1
7.4.2
7.4.3
7.4.4
8
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ST7775R
8.4.. RGB Input Interface ...........................................................................................60
RGB Interface ................................................................................................................... 61
8.4.1
8.4.2
RGB Interface Timing....................................................................................................... 62
8.4.3 Moving Picture Mode ....................................................................................................... 64
6-bit RGB Interface........................................................................................................... 66
8.4.4
16-bit RGB Interface......................................................................................................... 67
8.4.5
8.4.6
18-bit RGB Interface......................................................................................................... 68
8.5..
Interface Timing .................................................................................................71
8.6.. 24-bit Serial Peripheral Interface (24-bit SPI) ....................................................72
8.7.. 9-bit Serial Peripheral Interface (9-bit SPI) ........................................................76
8.8.. 8-bit Serial Peripheral Interface (8-bit SPI) ........................................................78
8.9.. Data Transfer Recovery.....................................................................................80
8.10.. Register Descriptions.........................................................................................80
9 COMMAND........................................................................................... 84
9.1.. System Function Command List........................................................................84
9.2.. System Function Command...............................................................................86
Index (IR) ........................................................................................................................... 86
9.2.1
Device ID Code Read (R00h) ........................................................................................... 86
9.2.2
Device Output Control (R01h) ......................................................................................... 86
9.2.3
LCD Driving Wave Control (R02h) .................................................................................. 88
9.2.4
Entry Mode (R03h)............................................................................................................ 89
9.2.5
Display Control 1 (R07h).................................................................................................. 92
9.2.6
Display Control 2 (R08h).................................................................................................. 94
9.2.7
Frame Cycle Control (R0Bh) ........................................................................................... 95
9.2.8
9.2.9
RGB Display Interface Control 1 (R0Ch)........................................................................ 96
9.2.10 Oscillator Control (R0Fh)................................................................................................. 97
9.2.11 Power Control 1 (R10h).................................................................................................... 97
9.2.12 Power Control 2 (R11h).................................................................................................... 98
9.2.13 DRAM Horizontal/Vertical Address Set (R20h, R21h)................................................... 98
9.2.14 Write Data to DRAM (R22h) ............................................................................................. 99
9.2.15 Read Data from DRAM (R22h)....................................................................................... 100
9.2.16 Softwave Reset (R28h)................................................................................................... 101
9.2.17 Gate Scan Control (R30h).............................................................................................. 102
9.2.18 Vertical Scroll Control1 (R31h,R32h) ........................................................................... 103
9.2.19 Vertical Scroll Control1 (R33h) ..................................................................................... 104
9.2.20 Partial Screen Driving Position (R34h,R35h)............................................................... 105
9.2.21 Horizontal and Vertical RAM Address Position (R36h, R37h, R38h, R39h) ............. 105
9.2.22 Gamma Control (R50h~R59h) ....................................................................................... 106
Version 0.1 Page 3 of 128 2010/03
ST7775R
ID Code(R65h, Read Only)............................................................................................. 108
9.2.23
9.2.24 SPI Read/Write Control(R66h)....................................................................................... 108
9.2.25 Power Control 2 (RB0h) ................................................................................................. 109
9.2.26 Power Control 3 (RB1h) ................................................................................................. 111
9.2.27 Power Control 4 (RB2h) ................................................................................................. 112
9.2.28 Power Control 5 (RB3h) .................................................................... 錯誤! 尚未定義書籤。
9.2.29 Power Control 6 (RB5h) .................................................................... 錯誤! 尚未定義書籤。
9.2.30 NVM ID Code (RD2h) ...................................................................................................... 113
9.2.31 NVM Control Status (RD9h)........................................................................................... 113
9.2.32 NVM Write Command (RDFh)........................................................................................ 114
9.2.33 NVM Enable (RFAh)........................................................................................................ 115
9.2.34 NVM VCOM Offset (RFEh) ............................................................................................. 115
9.2.35 NVM Command Enable (RFFh) ..................................................................................... 115
10 RESET FUNCTION ............................................................................ 116
10.1.. System Function Command List......................................................................116
10.2.. RAM Data Initialization ....................................................................................116
10.3.. Note on Reset Function ...................................................................................116
10.4.. Reset Timing Characteristic.............................................................................116
11 8 - COLOR DISPLAY MODE.............................................................. 118
12 WINDOW ADDRESS FUNCTION ...................................................... 119
13 GAMMA CORRECTION..................................................................... 120
14 APPLICATION ................................................................................... 123
14.1.. Configuration of Power Supply Circuit .............................................................123
14.2.. Standby Mode..................................................................................................124
14.3.. Power Supply Configuration ............................................................................125
14.4.. Voltage Generation..........................................................................................126
14.5.. Applied Voltage to the TFT panel ....................................................................127
15 REVISION HISTORY.......................................................................... 128
Version 0.1 Page 4 of 128 2010/03
ST7775R
LIST OF FIGURES
Figure 1 Parallel Interface Timing Characteristics (8080-Series MCU Interface) ........................................... 38
Figure 2 Rising and Falling Timing for I/O Signal............................................................................................ 39
Figure 3 Write-to-Read and Read-to-Write Timing.......................................................................................... 39
Figure 4 Parallel Interface Timing Characteristics (6800-Series MCU Interface) ........................................... 40
Figure 5 SPI Interface Timing Characteristics................................................................................................. 41
Figure 6 RGB Interface Timing Characteristics............................................................................................... 42
Figure 7 8080-Series WRX Protocol ............................................................................................................... 45
Figure 8 8080-Series Parallel Bus Protocol, Write to Register or Display RAM ............................................. 45
Figure 9 6800-Series WRX Protocol ............................................................................................................... 46
Figure 10 6800-Series Parallel Bus Protocol, Write to Register or Display RAM ........................................... 46
Figure 11 18 bits Interface Data Format (Command Write/DRAM Write) ....................................................... 47
Figure 12 16 bits Interface Data Format (Command Write/Display RAM Write)............................................. 49
Figure 13 9 bits Interface Data Format (Command Write/Display RAM Write)............................................... 50
Figure 14 8 bits interface data format (command write/Display RAM write) ................................................... 52
Figure 15 8080-Series Read Protocol ............................................................................................................. 53
Figure 16 8080-series parallel bus protocol, read data from register or display RAM .................................... 53
Figure 17 6800-Series Read Protocol ............................................................................................................. 54
Figure 18 6800-series parallel bus protocol, read data from register or display RAM .................................... 54
Figure 19 18 bits Interface Data Format (Command Read/Display RAM Read) ............................................ 55
Figure 20 16 bits Interface Data Format (Command Read/Display RAM Read) ............................................ 56
Figure 21 9 bits Interface Data Format (Command Read/Display RAM Read) .............................................. 57
Figure 22 8 bits Interface Data Format (Command Read/Display RAM Read) .............................................. 58
Figure 23 DRAM Address Map Table.............................................................................................................. 59
Figure 24 RGB Interface Data Format............................................................................................................. 60
Figure 25 DRAM Access Area by RGB Interface............................................................................................ 61
Figure 26 Timing Chart of Signals in 18-/16-bit RGB Interface Mode............................................................. 62
Figure 27 Timing chart of signals in 6-bit RGB interface mode....................................................................... 63
Figure 28 Example of update the still and moving picture............................................................................... 65
Figure 29 Example of 6-bit RGB interface data format ................................................................................... 66
Figure 30 6-bit Transfer Synchronization ........................................................................................................ 66
Figure 31 Example of 16-Bit RGB Interface and Data Format........................................................................ 67
Figure 32 Example of 18-bit RGB Interface and Data Format ........................................................................ 68
Figure 33 Internal clock operation/RGB interface mode switching ................................................................. 69
Figure 34 DRAM access between system interface and RGB interface......................................................... 70
Figure 35 Relationship between RGB I/F signals and LCD Driving Signals for Pane .................................... 71
Figure 36 Data Format of SPI Interface........................................................................................................... 73
Figure 37 Data transmission through serial peripheral interface (SPI) ........................................................... 74
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ST7775R
Figure 38 Data transmission through serial peripheral interface (SPI, TRI=”1” and DFM=”1 or 0”) ............... 75
Figure 39 9-bit SPI Write Register Mode......................................................................................................... 76
Figure 40 9-bit SPI Read Register mode......................................................................................................... 77
Figure 41 9-bit SPI 65K colors Serial Data Transfer, ...................................................................................... 77
Figure 42 9-bit SPI 262K colors Serial Data Transfer ..................................................................................... 78
Figure 43 8-bit SPI Write Register Mode......................................................................................................... 78
Figure 44 8-bit SPI Read Register mode......................................................................................................... 79
Figure 45 8-bit SPI 65K colors Serial Data Transfer, ...................................................................................... 79
Figure 46 8-bit SPI 262K colors Serial Data Transfer ..................................................................................... 79
Figure 47 Data Transfer Recovery .................................................................................................................. 80
Figure 48 Register Setting with Serial Peripheral Interface (SPI) ................................................................... 81
Figure 49 Register setting with i80 System Interface ...................................................................................... 82
Figure 50 Register Read/Write Timing of i80 System Interface ...................................................................... 83
Figure 51 Reset Timing ................................................................................................................................. 116
Figure 52 8-Color Display Mode.................................................................................................................... 118
Figure 53 DRAM Access Window Map ......................................................................................................... 119
Figure 54 Grayscale Voltage Generation (Positive) ...................................................................................... 120
Figure 55 Grayscale Voltage Generation (Negative) .................................................................................... 121
Figure 56 Relationship between Source Output and VCOM......................................................................... 122
Figure 57 Relationship between DRAM Data and Output Level ................................................................... 122
Figure 58 Power Supply Circuit Block ........................................................................................................... 123
Figure 59 Standby Mode Register Setting Sequence ................................................................................... 124
Figure 60 Power Supply ON/OFF Sequence ................................................................................................ 125
Figure 61 Power Booster Level ..................................................................................................................... 126
Figure 62 Voltage Output to TFT LCD Panel ................................................................................................ 127
Version 0.1 Page 6 of 128 2010/03
ST7775R
LIST OF TABLES
Table 1 Absolute Operation Range ................................................................................................................. 35
Table 2 Basic DC Characteristics.................................................................................................................... 36
Table 3 Power Consumption ........................................................................................................................... 37
Table 4 8080 Parallel Interface Characteristics............................................................................................... 39
Table 5 8080 Parallel Interface Characteristics............................................................................................... 40
Table 6 SPI Interface Characteristics .............................................................................................................. 41
Table 7 18/16 Bits RGB Interface Timing Characteristics ............................................................................... 42
Table 8 6 Bits RGB Interface Timing Characteristics ...................................................................................... 43
Table 9 Interface Type Selection..................................................................................................................... 44
Table 10 System Function Command List....................................................................................................... 85
Table 11 Reset timing Characteristics........................................................................................................... 117
Table 12 Outside Components...................................................................................................................... 123
Version 0.1 Page 7 of 128 2010/03
ST7775R
1 GENERAL DESCRIPTION
The ST7775R is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 528
source line and 220 gate line driving circuits. This chip is capable of connecting directly to an external
microprocessor, and accepts, 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the
on-chip display data RAM of 176x220x18 bits. It can perform display data RAM read/write operation with no
external operation clock to minimize power consumption. In addition, because of the integrated power supply
circuit necessary to drive liquid crystal; it is possible to make a display system with the fewest components.
Version 0.1 Page 8 of 128 2010/03
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